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Communication Dans Un Congrès Année : 2009

Optimal widely linear MVDR beamforming for noncircular signals

Résumé

This paper introduces the optimal widely linear (WL) minimum variance distorsionless response (MVDR) beamformer for the reception of an unknown signal of interest (SOI) corrupted by potentially second order (SO) noncircular background noise and interference. The SOI, whose waveform is unknown, is assumed to be SO noncircular with arbitrary noncircular properties. In the steady state and for SO noncircular SOI and/or interference, this new WL beamformer, that is derived from an original orthogonal decomposition, is shown to always improve the performance of both the well-known Capon's beamformer and a WL MVDR beamformer introduced recently in the literature. This optimal WL MVDR beamformer is first introduced and some of its performance are analyzed. Then, several adaptive implementations of this optimal WL beamformer are presented
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Dates et versions

hal-01361058 , version 1 (15-12-2020)

Identifiants

Citer

Pascal Chevalier, Jean-Pierre Delmas, Abdelkader Oukaci. Optimal widely linear MVDR beamforming for noncircular signals. ICASSP 2009 : IEEE International Conference on Acoustics, Speech, and Signal Processing, Apr 2009, Taipei, Taiwan. pp.3573 - 3576, ⟨10.1109/ICASSP.2009.4960398⟩. ⟨hal-01361058⟩
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